remove 3.0 from excluded versions because limitation lifted by native-tls
Improved unserialize()
Improved get_object_vars()
Clean up iteration a bit more
Improved array_keys()
Improved trim/ltrim/rtrim functions.
Now php_trim() operates on zend_string and returns zend_string (it may return the same zend_string).
share that hunk of code
Merge pull request #11 from TazeTSchnitzel/function-autoloading-7

Implement function autoloading
Add individual autoload proxies, as well as refactor internal implementations
Merge branch 'master' into function-autoloading-7
Fix issue with lookup function returning incorrect value
Fix recursion protection so that it works with __autoload as well
Use better stack API, fixes broken test
Fix bug with ZPP where errors aren't freed in quiet mode
WIP on SPL
More SPL work, add support for spl_autoload_functions()
Fixing more tests
Add first batch of tests
Fix two tests, and rebuild the engine
Refactor back into a single function to register